A surface texture identification display device and a surface texture identification method are provided. The surface texture identification method has a first surface for being contacted with a textured surface. The surface texture identification display device includes: an opaque backplane; a plurality of electroluminescent pixel units, located between the opaque backplane and the first surface and arranged in a plurality of rows extending in a first direction and a plurality of columns extending in a second direction; an image sensor located on a side of the opaque backplane away from the first surface; and a plurality of imaging pinholes, passing through the opaque backplane and configured to image the textured surface onto the image sensor. In a plan view of the surface texture identification display device, the plurality of pixel units and the plurality of imaging pinholes are located within an effective display region.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A surface texture identification display device, having a first surface for being contacted with a textured surface, wherein the surface texture identification display device comprises: an opaque backplane; a plurality of electroluminescent pixel units, located between the opaque backplane and the first surface and arranged in a plurality of rows extending in a first direction and a plurality of columns extending in a second direction; an image sensor located on a side of the opaque backplane away from the first surface; and a plurality of imaging pinholes, passing through the opaque backplane and configured to image the textured surface onto the image sensor, wherein, in a plan view of the surface texture identification display device, the plurality of pixel units and the plurality of imaging pinholes are located within an effective display region, wherein in the plan view of the surface texture identification display device, the effective display region includes a light emitting region and a non-light emitting region, and the plurality of imaging pinholes are located in the non-light emitting region, in the plan view of the surface texture identification display device, in at least one of the first direction or the second direction, two or more of the electroluminescent pixel units are located between every adjacent two of the imaging pinholes.
2. The surface texture identification display device according to claim 1 , wherein, the surface texture identification display device is a touch display device, the surface texture identification display device further comprises a controller, configured to enable only a part of the electroluminescent pixel units to emit light in response to a signal generated by the textured surface contacts with a partial region of the first surface, and each of the part of electroluminescent pixel units overlaps with the partial region of the first surface in a direction perpendicular to the opaque backplane.
3. The surface texture identification display device according to claim 1 , wherein, four of the imaging pinholes which are adjacent to one another are respectively located at four vertices of a rectangle.
4. The surface texture identification display device according to claim 1 , wherein, in at least one of the first direction or the second direction, a distance between adjacent two of the imaging pinholes is determined according to a distance between the opaque backplane and the image sensor in a direction perpendicular to the opaque backplane.
5. The surface texture identification display device according to claim 1 , wherein, the imaging pinhole is shaped in a circular or a square.
6. The surface texture identification display device according to claim 1 , wherein, in the plan view of the surface texture identification display device, the plurality of imaging pinholes are evenly distributed in a partial region or an entire region of the effective display region.
7. The surface texture identification display device according to claim 1 , wherein, the surface texture identification display device is an active-matrix organic light emitting diode display panel.
8. A surface texture identification method of the surface texture identification display device according to claim 1 , comprising: receiving, by an image sensor, an image signal generated by light reflected by the textured surface and passing through the imaging pinhole, when it is detected that the textured surface contacts with the first surface of the surface texture identification display device; and completing texture identification of the textured surface according to the image signal.
9. The surface texture identification method according to claim 8 , wherein, the surface texture identification display device is a touch display device, the surface texture identification method further comprises: enabling only a part of the electroluminescent pixel units to emit light in response to the image signal generated by the textured surface contacts with a partial region of the first surface, wherein each of the part of electroluminescent pixel units overlapping with the partial region of the first surface in a direction perpendicular to the opaque backplane.
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July 13, 2018
June 9, 2020
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